Reversible clutch



March l6, 1928.

Msi

W A CQOK REVERSIBLE CLUTCH Filed Feb. '7. 1927 AT EYS.

Patented Mar. 5, 1928.

lulivi-w STAT-Es `WILLIAIII-A. oook, or MARION, rNDIANA, AssIGNo'R'roMARION MAOIINE, `FoUNmiar SUPPLY Oo., or MARION, INDIANA, A CORPORATION.f l

REVERSIBLE CLUTCH.

1 Appncuonmed February 7, 1927.l serial 'N0/166,433.

a Thisinvention relates to areversibledrive. The chief-object of this'invention consists in` associating' with a. `pair of frictionallyengageable members suitable means for selectively gripping` the sameforcooperation with other parts to `secure reverse driving of a vrdrivenmember. f

The chief feature oftheinvention consists in the particulararrangementof thev several parts comprising 1the vreversing "mechanism,

and particularly that arrangementwhereby a reversible shaft `entendsthrough the driving hub and constitutes a bearing therefor. The fullnature of the invention will'be yunderstood from the accompanyingdrawings and the following description and claim:

In the drawings Fig. 1 is a partial elevation and partial longitudinalsection of the reversing mechanism. Fig. 2 is an end View taken on line2-2 of Fig. 1 and in the direction of the arrows of one of the frictiony clutch constructions and thatused for direct driving. f

This invention is of the general character which includes auni-directional power and a reversible and direct driven member.associated with which is a pair of selectively operable friction membersand a gear and pinion drive.

The invention consists in the particular arrangement of the severalparts, one feature thereof being directed specifically to the drivenmember constituting a shaft which extends the full lengthof thereversing mechanism and which is reversibly driven by means of a tubularhub mounted on one end of said shaft.

In the drawings, 10 indicates a power shaft carrying a fly-wheel 11 towhich is coupled by bolts 12, a flange 13 of the driving hub 14. Drivinghub 14 is tubular and extending into the same and substantially throughit, is a driven shaft 15, the latter forming a support for the former.The anti-friction construction 16 or a roller race, and another rollerrace 17 are provided adjacent the oppositeends of both and serve .toalign the hub coaxially with the shaft. The end of the hub oppositeflywheel 11 supports a ring gear 18 having bevel teeth.

Also rotatably mounted on Vthe shaft 15 is aspidered pinion supporting.brake drum 19 having the brake Vband engageable surface 20 engageable bythe brake band 21 and an inner hub member 22 rotatably mounted throughthe roller race ways $23 upon shaft 15. Pivot pins 24 are` radiallymounted in thehub 22 and theange 19 ofk the spidered brake` drum, andro'tatablgT mounted on each of vsaid spindles 24 is'ja bevel pinion25andall of `saidpinions .constantlymesh with the gear 18.` Alsoconstantly. in mesh' is a ring gear 426 having bevel teeth, the latterbeingv securedftofa hub 27 keyed to orfotherwise rigidiwith-theshaftiasaeee.. H i

When the brake band 21 engages the drum 20 the fiange 19 is heldstationary. Rotation of shaft 10 through the hub 14 and-bevel ring gear18 rotates the pinions 25 which in turn rotate the bevel ring gear 26,and since it is keyed to the shaft 15, said shaft 15 isreverselyrotated, andsince the two ring gears are alike,`the rotation isat t-he same rate but in opposite directions. Mounted upon the end ofthe shaft 15 is a coupling construction 29 for connection to a similarcoupling construction of a driven member. The foregoing constitutes thereverse driving arrangement.

The shaft 15 is herein shown providedV with at least one bearing and thesame is inf dicated at 30 inthe standard 31. Said standard 31 has anopening 32 extending parallel to the shaft aXis and a threaded yoke bolt33 supporting a pivot pin 34 is adjustably mounted therein by means ofthe nuts 35. A collar 36 encireles the shaft 15 and said collar includesa peripheral extension 37 that rides in a groove 38 formed in a eaf wisesuitably secured to the shaft 15. Each l of the ear constructions 48 isin spaced relation to the plate 49 and forms a slot 52 therebetween, inwhich is mounted a tongue 53 of a U-shaped shoe 54. one facel thereofbeing arcuate as at 55 and being faced with suitable frietion material56. The tongue 53 includes a slot 154 andthe end 155 of the link 46extends into said slot and thus when the link 46 is tilted, the shoe iscaused to move radially, inwardly or outwardly into and out of drumengagement, the drinn herein being shown as a peripheral cylindricalflange 57 carried by the spidered arms 58 rotatably supported byanti-friction element 59 and rigidly connected by the arms GO to thefiange 19 of the brake drinn.

When the hub 36 is shifted longitlnlinally of the shaft by lever At0,the toggle linkages are actuated to draw the several shoes, and hereinfour are illustrated, into drum engagement', or into the releaseposition as shown in Fig. l. When retracted into drum engagement, sincethe hub 50 is keyed to shaft the drinn 57 must rotate with the shaft 15.Since the hub 27 supporting ring gear 26 is also keyed to shaft 15, andsince the bevel gear 26 meshes with the bevel pinion 25, the aforesaidconstruction is such that the several bevel gears are locked together,and therefore, cannot rotate relatively. Since they are thus lockedtogether,

the gear 18 cannot rotate relatively of the pinion or the gear 26, andtherefore, the pinion 25 is locked to the driving gear 18. Thus shaft 15is driven in the same direction and at the same speed as the hub 14 whenthe brake band 21 is released from the brake drum and the shoes engagethe drum 57. A suitable common selective brake and clutch control may beprovided. if desired.

The invention claimed is:

In a clutch construction, a shalt, a driving pinion support rotatablymounted thereon, a pair of opposed anti-1ri tion thrust hearingsinterposed therebetween, a driving hub enclosing one end of the shaft,and another pair of opposed anti-friction thrust. bearings interposedtherebetween, adjacent hearings of both pairs of opposed anti-frictionthrust bearings opposing each other.

In Witness whereof, l have hereunto affixed my signature.

VILLIAM A. COOK.

